NLB using CISCO ports as trunks ports to VSphere 4.0

Does anybody know how to configure NLB for virtual servers within the following senarios?

CISCO 6509 with multiple Gigabit Ethernet ports defined as TRUNK ports and directly connected to one's ESX  servers.

So the topology is as folllows:

6 -----------GI---TRK----------ESX1     /          VM1 (VLAN300 real ip )                   \

5 -----------GI---TRK----------ESX1    /                                                                  \

0 -----------GI---TRK----------ESX2    \          VM2 (VLAN300 real ip)                       /

9 -----------GI---TRK----------ESX2     \                                                                /

There are notes describing NLB configuration statement on 6509 side, however they specfy "vlan switch access point" senario.

Can you advise on the additional step on the CISCO or the virtual switch within the VSPHERE?